Flyovers at certain airports will be dependent on Air Traffic Control clearances at the time of arrival.

A spokesman for VTTS said: “This coming weekend, XH558 will take off on two large, orbital tours of the country, visiting as many places as we can sensibly cover within the operational constraints and time we have available.

“With flight times expected to be over three and a half hours each day, we also have to consider the limits of fuel-load and, of course, the comfort of our flight crews in very cramped and high workload conditions.”

The routes vary from those originally published more than 10 days ago.

Times have yet to be confirmed and will be published in a VTTS newsletter on Friday, but the flights are expected to start after lunch each day.

Full updates, locations and timings will be made available on Facebook and Twitter.